Fittings for concrete casings.



PATENTED JULY l0, 1906.

(F. A. KOETITZ. FITTINGS POR CONCRETE CASINGS.

APPLICATION FILED MAR.B.1906.

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FiTTlNGs Fou CONCRETE cAsiNes.

Specification of Letters Patent.

Fatented July 3G? Application led March 8.1906. Serial No. 304.92-413 To rt/J whom, it may concern.-

Be it known that I, FREDERICK A. Konrrrz, a citizen of the United States, residing in the city and county of San Francisco and State of California, have invented neur and useful Improvements in Fittings for Concrete Casiugs, of which the following is a specification.

My invention relates to fittings which are.

applicable especially to concrete casings for piles.

It consists. in the combination of arts and in details of construction which wil 'be more fully explained by reference to the accompanying drawings, in whichi Figure l shows an application ot my improved casing. Figs. 2 and 3 are detail views of the cap. Figs. 4 and 5 are views of the s lice-ring. Figs. 6 and 7 are views of the s oe.

For the pur ose of providing supports for wharves and l1 e structures piles are driven, and these piles may be inclosed in concrete casinvs, as shown'in Patent No. 788,410, issued to me April 25, 1905.

My present invention is designed to connect several sections of concretel casings together, to maintain them in line, to provide guides for the iles in order to maintain them substantie y central within the casing, and to reinforce-the concrete fillings and form anchors for superstructure and for other purposes of like nature.

As shown in the drawings, A is a hollow concrete casing of cylindrical or other forni and of any sui-table or desired size. This ca'sing is of suflicient diameter to receive the pi e or other structure which may be used in conjunction with it. In the present drawings I have illustrated my .invention as especially'ap lied to the inclosure and protectlon of piles; ut it will be manifest that it may be equally well employed on other and similar structures re uiring protection.l

As herein s iown, the c'asinfT A is made in vlengths or sections, and at tIie junction of these sections I have shown the interior iittings 2 covering the junction of two easingsections. I have shown these fittings as 1n the form of sleeves having an exterior diameter which will iit Within the casing, and annular flanges 3 .project outwardly and enter correspondingly-shaped grooves formed by bevelingthe meeting ends of the casingsections. 'Projecting inwardl from these sleeves are lu s 4 at stated an( substantially equal interva around the inner periphery',

these lugs being adapted to receive vertically-disposedtie-rods 5, which extend down through 'the splice-fittings and also through a cap 6 at the upper end of the casing and a shoe 7 at the lower end and suitabl secured. The cap 6 has a shape similar to t at of the easing, which in the present case is circular, and has a sleeve or flange 6 extending downwardly within the casing, which it'substantially fits, 'andthe inwardly-projecting portion of the-cap has holes or perorations cor-v responding wlth and in line with the rods 5, so that the latter may extend up through the cap and to a distance sufficientto conneet with and form anchors for the superstructure of Whatever nature. The inwardly-projecting overhanging portion of the cap may have angular brackets 6b extending downward at intervals and upon each side of the rods 5, where they pass throughV these flanges, formin the brac inwardly over anging portion of the cap and sustaining it against the pressure of locking-nuts or the weight of thesuperstructure C which may rest thereon.

The shoe for the casing is formed with the horizontal portion 7 formin a shelf or'lsupport for the bottom section o the casing, having an upwardly-extending annular flange 7n with hracing-brackets similar to those ofthe cap-piece tosustain the inwardlyeprojecting portion of the bottom ofthe shoe. The part 7c of the shoe is made conical or tapering to prevent too much soil from entering the eas ing, and the inner edge of the part 7c forms a guide against the pile which has been previo'usly driven.A The casing may thus be united and sunk upon the bottom, or if it is soft and it is desirable it may be sunk into the soft material as far as may be desired, and the sections of the casing are firmly secured together by the vertical tie-rods 5 to form a unitary structure. The pile is first driven in the usual manner or old piles for repair-work ets supporting the ICO are out off at about Water-level, and the imier periphery of the shoe serves as' a guide against the pile and maintains the casing at the proper distance from the pile to allow'a body of concrete to be filled into the annular space between the pile and casing, thus' making a` solid structure.

The lugs 4 of the spliced sleeves-.form

guides to maintain the tie rods properly spaced within the structure, and vthese rods remain in place and act as a rei'nforcementof the concretejilling.

los

IIC

- the bottoni7 and over piles already in place,

sleeves forming splices at the junction of the sections, tierods extending longitudinalbv through the casings, said sleeves having perforated anges through which the rods pass,

Y and concrete filling Within the casings.

las

2.l A11 independenthollow concrete casing consisting of sections, sleeves located within the sections at their junction, a cap-piece and shoe'and tie-rods extending through the eappiece and shoe, and a pile located within the casing and shoe.

3. A n independent hollow concrete casing composed of sections axialljT in line, interior sleeves covering` the junction of the sections and having annular flanges projecting into channels formed in the sections at their junction, interior perforated lugs, a cap-piece and a shoe having flanges extending inwardljT and perforated in line with the lugs of the junction-sleeves, and tie-rods extending through said openings.

4. An independent hollow concrete easing formed in sections having interior grooves or channels at their meeting ends, sleeves vlitting Within the casings and haring [langes projecting into the grooves thereof', spaced. guide-` lugs extending inwardljv from the sleeves, a 'cap-piece resting upon the top ol the casing and projecting .inwardljP theretroi'nl` and a flange fitting the interior of the casing, vertical openings in the interior portion of the cap in line with the lugs of the junctionsleeves, a shoe upon which the bottoni of the casing rests, said shoe extending inwardly` and having openings corresponding with those of the cap, spaced tie-rods extending through the cap, the shoe and the spacerilugs, a pile around which the inner periphery of the shoe oll the casing is. fitted, and a filling of concrete between and above the pile and the inner walls of the easing.

5. A hollow concrete casing composed of independent lengths axially in linev and having interior grooves or channels formed at the junction of the sections, sleeves fitting the interior of the casing and having outwardly-projecting flanges fitting the grooves of the sections and imvardly-projecting lugs at intervals, a cap-piece, and a shoe yagainst the outer portion oi' which the top and bottoni of the casing abut7 said cap-piece and shoe extending'beyond the inner wall ofthe casing and having sleeves extending into the casing, brackets spaced to coincide with the lugs of the joint sleeves and having openings made between theln, tie rods extending through said openings and the sleeve-lugs and projecting inwardly to form anchors for the superstructure, a driven pile within the casing, and a subsequent filling of concrete between and above the pile and the casing.

ln. testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.

' 1 'FREDEIHCK A. KOETTZ. fvitnessesz C. D. OCONNOR, S. H. NOURSE. 

